US7681321B2 - Eyeglass frame shape measuring apparatus - Google Patents

Eyeglass frame shape measuring apparatus Download PDF

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Publication number
US7681321B2
US7681321B2 US12/167,864 US16786408A US7681321B2 US 7681321 B2 US7681321 B2 US 7681321B2 US 16786408 A US16786408 A US 16786408A US 7681321 B2 US7681321 B2 US 7681321B2
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Prior art keywords
arm
feeler
pivot
rotation
rim
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Expired - Fee Related, expires
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US12/167,864
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US20090007444A1 (en
Inventor
Ryoji Shibata
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Nidek Co Ltd
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Nidek Co Ltd
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/20—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring contours or curvatures, e.g. determining profile
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/20—Measuring arrangements characterised by the use of mechanical techniques for measuring contours or curvatures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
    • B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
    • B24B9/06—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
    • B24B9/08—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass
    • B24B9/14—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass of optical work, e.g. lenses, prisms
    • B24B9/144—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass of optical work, e.g. lenses, prisms the spectacles being used as a template
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques

Definitions

  • the present invention relates to an eyeglass frame shape measuring apparatus for measuring a three-dimensional shape of a rim (a lens frame) of an eyeglass frame.
  • An eyeglass frame shape measuring apparatus called as a frame tracer, which is so formed that an eyeglass frame is held substantially horizontally by a holding mechanism, and a feeler (a stylus) is moved along a groove of a rim of the frame while it is abutted against the rim groove to detect movement (a position) of the feeler, whereby a three-dimensional shape of the rim is measured, has been heretofore proposed (Reference should be made to Japanese Patent Publications No. JP-A-2000-314617 (U.S. Pat. No. 6,325,700), No. JP-A-2001-174252, No. JP-A-2006-350264 (US2005/0275802), No. JP-A-S62-215814, etc.).
  • the art now in practical use is the device of a type having a moving base which is rectilinearly moved in a substantially horizontal direction, and a moving shaft which is rectilinearly moved in a vertical direction (a substantially perpendicular direction) with respect to the moving base, in which the feeler is attached to the moving shaft, as disclosed in Japanese Patent Publication No. JP-A-2000-314617 (U.S. Pat. No. 6,325,700).
  • a technical object of the invention is to provide an eyeglass frame shape measuring apparatus which can stably and accurately measure a shape of a rim of an eyeglass frame, while a feeler is unlikely to deviate from a groove of the rim even in case of measuring a highly curved frame, and smooth movement of the feeler can be maintained during a long term use.
  • an eyeglass frame shape measuring apparatus has the following features.
  • An eyeglass frame shape measuring apparatus for measuring a three-dimensional shape of a rim of an eyeglass frame, the apparatus comprising:
  • a frame holding unit which holds the frame in a desired position
  • a feeler holding unit which comprises a support shaft to which a feeler to be inserted into a groove of the rim at a time of measurement is attached, a first arm for holding the support shaft, an elastic body for urging the first arm so that the support shaft is urged outward with respect to a rotation center axis of the rotary base, and a first arm holding unit for holding the first arm so as to enable the support shaft to be inclined with respect to the rotation center axis, the feeler holding unit being provided on the rotary base;
  • a detecting unit which detects movement of the first arm
  • an arithmetic unit which obtains a three-dimensional movement position of the feeler to obtain the three-dimensional shape of the rim, on the basis of rotation of the rotary base and results of detection of the detecting unit.
  • the first arm holding unit comprises a second arm which holds the first arm so that the first arm can rotate in a radial direction of the rim around a first pivot and is provided on the rotary base so as to rotate in a vertical direction around a second pivot, and
  • the detecting unit comprises a first rotation detecting unit for detecting rotation of the first arm around the first pivot with respect to the second arm, and a second rotation detecting unit for detecting rotation of the second arm around the second pivot.
  • the eyeglass frame shape measuring apparatus further comprising a second arm fixing unit having a fixing member for fixing a rotation angle of the second arm at a predetermined angle.
  • the first arm holding unit comprises a second arm which holds the first arm so that the first arm can rotate in a radial direction of the rim around a first pivot and is provided on the rotary base so as to rotate in a vertical direction around a second pivot, and
  • the elastic body is a spring which is provided between the first arm and the second arm so as to urge the first arm in a direction away from the rotation center axis.
  • the eyeglass frame shape measuring apparatus wherein the feeler holding unit is provided at the second arm with a balancing mechanism which is arranged at an opposite side to the first arm with respect to the second pivot and generates an urging force for raising the first arm to attain balance in mass of vertical movement of the first arm.
  • the feeler holding unit is provided at the first arm with a balancing mechanism which is arranged at an opposite side to the support shaft with respect to the first pivot to attain balance in mass of rotation of the first arm around the first pivot.
  • FIG. 1 is a schematic outside view of an eyeglass lens processing apparatus having an eyeglass frame shape measuring apparatus according to an embodiment of the invention.
  • FIG. 2 is a view of a frame holding unit in a state where an eyeglass frame is held, as seem from above.
  • FIG. 3 is a perspective view of a measuring mechanism.
  • FIG. 4 is a view of the measuring mechanism, as seen from above.
  • FIG. 5 is a side view of the measuring mechanism.
  • FIG. 6 is a side view of the measuring mechanism in a state where a tip end of a feeler is placed on a level (a height) of a measuring reference plane (a mounting plane) of the frame.
  • FIG. 7 is a schematic block diagram of a control system of the device.
  • FIG. 8 is a view for explaining a manner of obtaining a three-dimensional shape of a rim of the frame.
  • FIGS. 9A , 9 B and 9 C are views for explaining reason why the feeler is unlikely to deviate from a groove of the rim in measuring a highly curved frame.
  • FIG. 1 is a schematic outside view of an eyeglass lens processing apparatus 1 having an eyeglass frame shape measuring apparatus 2 according to the embodiment of the invention.
  • the apparatus 2 for measuring a three-dimensional shape of a rim (a lens frame) of an eyeglass frame F, a template (a pattern), a dummy lens (a model lens), etc.
  • a switch panel 41 having switches for operating the apparatus 2
  • a display 43 for displaying processing information or the like
  • a switch panel 45 having switches for operating the apparatus 1 .
  • the apparatus 2 comprises a frame holding unit 100 for holding the frame F in a desired state, and a measuring mechanism 200 which is provided below the frame holding unit 100 .
  • FIG. 2 is a view of the frame holding unit 100 in a state where the frame F is held, as seen from above.
  • Sliders 102 and 103 for substantially horizontally holding the frame F are provided on a base 101 .
  • the sliders 102 and 103 are arranged so as to slide symmetrically with respect to a reference line L 1 at a center between them, and are pulled by a spring 113 in a direction toward a center line (the reference line L 1 ) between them.
  • Clamp pins 130 a and 130 b for clamping the rim of the frame F from above and below are respectively provided at two positions of the slider 102 .
  • clamp pins 113 a and 131 b for clamping the rim of the frame F from above and below are respectively provided at two positions of the slider 103 .
  • the sliders 102 , 103 are set free, and a known template holding tool is fitted to a fitting part 140 to be used.
  • the known frame holding units as disclosed in Japanese Patent Publication No. JP-A-2000-317617 (U.S. Pat. No. 6,325,700) etc. can be used as the frame holding unit 100 .
  • FIG. 3 is a perspective view of the measuring mechanism 200 .
  • FIG. 4 is a view of the measuring mechanism 200 , as seen from above.
  • FIG. 5 is a side view of the measuring mechanism 200 .
  • the frame holding unit 100 is omitted, although the frame F is shown in a state held in the desired state (in a substantially horizontal position) by the frame holding unit 100 .
  • a rotary base 210 is held by a laterally sliding base 201 so as to rotate around a substantially vertical axis L 2 .
  • the laterally sliding base 201 is moved in a lateral direction of the frame F by a moving mechanism which is not shown.
  • FIGS. 3 to 5 show a state of measuring a right rim of the frame F, and the laterally sliding base 201 is moved to a left rim side in the case of measuring a left rim of the frame F.
  • the rotary base 210 is rotated around the axis L 2 by a rotating mechanism 202 having a pulse motor etc. which is attached to the laterally sliding base 201 .
  • the measuring mechanism 200 is rotated around the axis L 2 with respect to the frame F which is held by the frame holding unit 100 .
  • a feeler holding unit 211 having the following structure is provided on the rotary base 210 .
  • An arm 220 (a second arm) is held so as to rotate in a vertical direction around a pivot (an axis) S 1 through a bearing 222 , on a block 212 which is fixed to the rotary base 210 .
  • a rotation angle (a rotation amount) of the arm 220 is detected by an encoder 224 (a detecting unit) which is mounted to the block 212 through a known rotation transmitting mechanism including gears, pinions, and so on.
  • An arm 230 (a first arm) is held on a distal end 220 a of the arm 220 so as to rotate around a pivot (an axis) S 2 which is perpendicular to the pivot S 1 , through a bearing 232 .
  • a rotation angle (a rotation amount) of the arm 230 is detected by an encoder 234 (a detecting unit) which is mounted to the arm 220 through a known rotation transmitting mechanism including gears, pinions, and so on.
  • a distal end 230 a of the arm 230 extends from the pivot S 2 in a direction where the rotation center axis L 2 of the rotary base 210 is located.
  • An upwardly extending support shaft 240 is fixed to the distal end 230 a .
  • the support shaft 240 is so arranged as to extend upwardly in a substantially vertical direction with respect to a plane in which the arm 230 is rotated.
  • the support shaft 240 is so arranged as to substantially pass the rotation center axis L 2 of the rotary base 210 , when the arm 230 is rotated around the pivot S 2 .
  • a feeler (a stylus) 242 to be abutted against (inserted into) a groove of the rim of the frame F is attached to an upper part of the support shaft 240 .
  • the feeler 242 in this embodiment is attached to an upper end of the support shaft 240 in such a manner that it extends in a needle-like shape from a center of the support shaft 240 , and its tip end 242 a is directed in a substantially tangential direction of a rotation circular path of the support shaft 240 .
  • FIG. 6 is a side view of the measuring mechanism 200 in a state where the tip end 242 a of the feeler 242 is placed on a level (a position) P 0 of a measuring reference plane (amounting plane) of the frame F which is held by the frame holding unit 100 .
  • the drawing shows this apparatus when the support shaft 240 is held substantially vertically with respect to the measuring reference plane.
  • the tip end 242 a of the feeler 242 is not parallel to the measuring reference plane, but extends from the center of the support shaft 240 so as to be inclined at an angle ⁇ of about 3 to 10 degree. In this manner, the feeler 242 becomes unlikely to deviate from the rim groove, even in case where the frame F is a highly curved frame.
  • a spring (an elastic body) 236 for urging the feeler 242 toward the rim groove side is provided as a measuring pressure applying mechanism.
  • a tensile spring having a substantially constant urging force is used as the spring 236 .
  • the spring 236 is provided between a backward end 230 b of the arm 230 and a backward end 220 b of the arm 220 .
  • the tip end 242 a of the feeler 242 is urged by the spring 236 in a direction away from the rotation center axis L 2 of the rotary base 210 (outward direction) along the circular path around the pivot S 2 , thereby to be a butted against the rim groove.
  • the measuring pressure applying mechanism may be so constructed that the urging force for rotating the arm 230 is applied by a coil spring which is provided around the pivot S 2 .
  • a first arm holding unit 221 for holding the arm 230 comprises the aforesaid block 212 , the arm 220 , and so on.
  • the support shaft 240 which is fixed to the arm 230 is so adapted as to be inclined with respect to the rotation center axis L 2 of the rotary base 210 by the first arm holding unit 221 , so that the feeler 242 may move along the rim groove.
  • the distal end 230 a of the arm 230 is affected by gravity.
  • the measuring pressure applied to the feeler 242 will change, even though the urging force of the spring 236 is substantially constant.
  • a weight 238 as a balancing mechanism is attached to the backward end 230 b of the arm 230 . Because the arm 230 is substantially balanced in mass with respect to the pivot S 2 by the weight 238 , the measuring pressure to be applied to the feeler 242 can be kept substantially constant, irrespective of the rotation of the arm 220 in the vertical direction.
  • a weight 228 as a balancing mechanism is attached to the backward end 220 b of the arm 220 , in order to keep balance in mass of the vertical movement (rotation in the vertical direction) of the arm 220 around the pivot S 1 to be substantially constant.
  • the mechanism for keeping the balance in mass it is possible to employ a structure of using a driving force generated by a spring, a motor and so on which can apply an urging force.
  • a moving mechanism (a rotation force applying unit) 250 for moving the arm 230 around the pivot S 2 toward the rotation center axis L 2 of the rotary base 210 against the urging force of the spring 236 is provided on the rotary base 210 .
  • the moving mechanism 250 includes a round member 252 which is mounted on the rotary base 210 so as to rotate around a substantially vertical axis L 3 , a shaft 254 which extends upwardly at a position offset from the rotation center axis L 3 of the round member 252 , and a motor 256 for rotating the round member 252 around the axis L 3 .
  • an arm fixing unit 260 having the following structure is provided at the backward end 220 b of the arm 220 .
  • rotary members 262 a and 262 b are held on the block 212 so as to rotate respectively around two axes L 4 and L 5 which are positioned above and below the backward end 220 b of the arm 220 .
  • a clamp member (a fixing member) 264 a is fixed to the rotary member 262 a at a position offset from the axis L 4 .
  • a clamp member (a fixing member) 264 b is fixed to the rotary member 262 b at a position offset from the axis L 5 .
  • the rotary members 262 a and 262 b are driven to rotate by a motor 266 in association, by a rotation transmitting mechanism which is not shown in the drawings.
  • the clamp members 264 a and 264 b are rotated around the axes L 4 and L 5 , whereby a distance between them is reduced, as shown in FIG. 6 .
  • the backward end 220 b of the arm 220 is clamped between the clamp members 264 a and 264 b , whereby the arm 220 is fixed in a substantially horizontal position. Accordingly, the support shaft 240 is maintained substantially vertically with respect to the rotation plane of the rotary base 210 by the clamp members 264 a and 264 b . Because the support shaft 240 is maintained substantially vertically, the feeler 242 is placed at a level of the measuring reference plane in the vertical direction (in a direction of height).
  • the support shaft 240 is abutted against a peripheral edge of the template K to serve as the feeler.
  • the rotation of the arm 220 is fixed by the arm fixing unit 260 , as shown in FIG. 6 .
  • the arm 230 is moved toward the rotation center axis L 2 of the rotary base 210 by the moving mechanism 250 , whereby the support shaft 240 is abutted against a side face of the template K, and a shape of the template K is measured.
  • the template K is held by the frame holding unit 100 by means of a template holding tool which is not shown.
  • the measuring mechanism 200 is driven by an arithmetic and control unit 50 , and measurement of the right rim is first started.
  • the arm 230 , the support shaft 240 , and the feeler 242 are rotated toward the rim groove with the urging force of the spring 236 . Then, the feeler 242 is inserted into the rim groove of the frame F which is placed at the level of the measuring reference plane, by the clamp pins 130 a , 130 b , 131 a , 131 b of the frame holding unit 100 .
  • the clamp members 264 a and 264 b which have clamped the backward end 220 b of the arm 220 are moved by the motor 266 , whereby the distance between the clamp members 264 a and 264 b becomes the largest, as shown in FIG. 5 .
  • restriction of the rotation of the arm 220 in the vertical direction is released, and the feeler 242 is permitted to move in the vertical direction along the rim groove of the frame F.
  • the feeler 242 is abutted against the rim groove with a substantially constant measuring pressure by the urging force of the spring 236
  • the rotary base 210 is rotated around the axis L 2 by the rotating mechanism 202 , whereby the feeler 242 is moved in the vertical direction along the rim groove of the frame F and in a direction away from the rotation center axis L 2 of the rotary base 210 .
  • the arm 220 is rotated around the pivot St, and the arm 230 is rotated around the pivot S 2 .
  • the rotation angle of the arm 220 is detected by the encoder 224
  • the rotation angle of the arm 230 is detected by the encoder 234 .
  • the three-dimensional shape of the rim is computed by the arithmetic and control unit 50 .
  • the rotation angle ⁇ n of the rotary base 210 can be obtained by the arithmetic and control unit 50 from driving pulses of the pulse motor in the rotating mechanism 202 .
  • the origin point O is positioned on the rotation center axis L 2 of the rotary base 210
  • the three-dimensional coordinate system of X, Y, Z at a certain rotation angle of the rotary base 210 is considered.
  • the rotation center of the arm 220 is positioned on an XY plane through which an X axis and a Y axis relative to the origin point O pass, the rotation center is set to be a point T 1 .
  • the rotation center of the arm 230 is set to be a point T 2 .
  • the tip end 242 a of the feeler 242 is set to be a point T 3 , and a point of intersection when the normal is extended from the point T 3 up to the plane on which the arm 230 is rotated around the point T 2 is set to be a point T 4 .
  • a distance a is set from the point T 1 to the point T 2
  • a distance b is set from the point T 1 to the origin point O in a direction of the X axis
  • a distance c is set from the point T 1 to the origin point O in a direction of the Y axis
  • a distance d is set from the point T 2 to the point T 4
  • a distance e is set from the point T 3 to the point T 4 .
  • an angle where a line segment T 1 -T 2 of the arm 220 is inclined with respect to the X axis in the vertical direction (the direction of the Z axis) is set to be ⁇ x
  • an angle where a line segment T 2 -T 4 of the arm 230 is inclined with respect to the Y axis is set to be ⁇ y.
  • the angle ⁇ X is the angle obtained by the encoder 224
  • the angle ⁇ y is the angle obtained by the encoder 234 .
  • a coordinate of the point T 3 which is the tip end 242 a of the feeler 242 can be obtained from the following operation.
  • Z ( a+d sin ⁇ y )sin ⁇ x+e cos ⁇ x
  • the point T 3 represented by the above described coordinate system of X, Y is converted into a polar coordinate system which is represented by a length of a radius r and an angle of the radius ⁇ relative to the origin point O, the point T 3 is represented by the following formula.
  • the above described operation is based on the case where the rotary base 210 is fixed.
  • the three-dimensional shape (Rn, ⁇ n, Zn) of the rim which has been obtained in this manner is stored in a memory (not shown) which is connected to the arithmetic and control unit 50 , and called up for use from the memory, when the peripheral edge of the eyeglass lens is processed.
  • the movements of the feeler 242 in both the vertical direction and the radial direction are controlled by the mechanism which is moved through the circular movement, and therefore, it is possible to use the bearings 222 and 232 such as radial bearings which can perform smooth rotation and has high sealing performance.
  • the smooth movements of the feeler 242 in both the vertical direction and the radial direction can be maintained during a long term use, and the three-dimensional shape of the rim of the eyeglass frame can be accurately measured.
  • the feeler 242 is more unlikely to deviate from the rim groove, even when the eyeglass frame having a large warp (the highly curved frame) is measured, as compared with the structure of the above described conventional device, and it is possible to measure the three-dimensional shape of the rim of the eyeglass frame stably and accurately. The reason will be described below.
  • FIGS. 9A and 9B show a structure in which the feeler 242 abutted against the rim groove FV is rotated around the pivot S only in the vertical direction (vertical movement), and a moving body M supporting the pivot S is moved in the radial direction (a lateral direction in the drawings: an X direction), in the same manner as in Japanese Patent Publication No. JP-A-2001-174252.
  • the moment N is the product of a force (a measuring pressure) E and a distance h in a direction substantially perpendicular to a direction of the force E.
  • N E ⁇ h
  • FIG. 9B shows the case where the frame F is highly curved, and the rim groove FV is at a position P 2 which is higher than the position P 1 of the reference plane.
  • FIG. 9C shows the case of the apparatus in this embodiment.
  • the feeler 242 is rotated in the vertical direction around the pivot S 1 (the vertical movement), and the pivot S 1 is supported by the fixed block 212 .
  • the movement of the feeler 242 in the radial direction (the X direction) is performed by the arm 230 (not shown in FIG. 9C ) which is rotated around the pivot S 2 at the distal end side of the arm 220 .
  • the force (the measuring pressure) E to be exerted on the feeler 242 is generated by the spring 236 in a direction of a plane where the feeler 242 is rotated around the pivot S 2 .
  • the measuring pressure E is exerted in a substantially horizontal direction in case where the rim groove FV of the frame F which is held by the frame holding unit 100 is at the level of the measuring reference plane (the mounting plane), and according to an extent that the position of the rim groove FV becomes higher, the direction of the measuring pressure E also varies in the upward direction. In short, the measuring pressure E is exerted in a direction along a curve of the frame F. As the results, measurement with high precision can be realized.
US12/167,864 2007-07-04 2008-07-03 Eyeglass frame shape measuring apparatus Expired - Fee Related US7681321B2 (en)

Applications Claiming Priority (2)

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JP2007-176695 2007-07-04
JP2007176695A JP4920514B2 (ja) 2007-07-04 2007-07-04 玉型形状測定装置

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US20090007444A1 US20090007444A1 (en) 2009-01-08
US7681321B2 true US7681321B2 (en) 2010-03-23

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US (1) US7681321B2 (ko)
EP (1) EP2012085B1 (ko)
JP (1) JP4920514B2 (ko)
KR (1) KR101419550B1 (ko)
CN (1) CN101339020A (ko)

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US20100064533A1 (en) * 2008-09-16 2010-03-18 Kabushiki Kaisha Topcon Spectacle lens frame shape measuring apparatus
US20110131823A1 (en) * 2009-12-09 2011-06-09 Nidek Co., Ltd. Eyeglass frame shape measurement apparatus
US20110131822A1 (en) * 2009-12-09 2011-06-09 Nidek Co., Ltd. Eyeglass frame shape measurement apparatus
US20140020254A1 (en) * 2012-07-23 2014-01-23 Nidek Co., Ltd. Eyeglass frame shape measurement apparatus
US9080853B2 (en) 2012-09-05 2015-07-14 Nidek Co., Ltd. Eyeglass frame shape measuring apparatus
US9316489B2 (en) 2012-11-21 2016-04-19 Pro Fit Optix Inc. Laser frame tracer

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JP5139792B2 (ja) * 2007-12-19 2013-02-06 株式会社トプコン 玉型形状測定装置
JP5143541B2 (ja) * 2007-12-19 2013-02-13 株式会社トプコン 玉型形状測定装置
JP5377876B2 (ja) * 2008-03-28 2013-12-25 株式会社トプコン 眼鏡枠形状測定装置
FR2934903B1 (fr) * 2008-08-07 2012-04-06 Briot Int Appareil de lecture de la geometrie d'un drageoir.
US8651183B2 (en) * 2009-07-31 2014-02-18 Schlumberger Technology Corporation Robotic exploration of unknown surfaces
DE102010010340B4 (de) * 2010-03-04 2013-11-28 Schneider Gmbh & Co. Kg Messanordnung zum Vermessen eines Brillengestells
KR101227825B1 (ko) * 2010-10-28 2013-01-29 신준수 안경 렌즈의 시선 각도 측정 장치
US8448344B2 (en) * 2011-03-23 2013-05-28 Mccray Optical Supply Inc. Digital lens gauge
KR101917394B1 (ko) * 2011-09-21 2018-11-09 가부시키가이샤 니데크 안경 프레임 형상 측정 장치
CN110998225B (zh) * 2017-07-31 2022-06-03 尼德克株式会社 眼镜框形状测定装置及透镜加工装置

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US20110131822A1 (en) * 2009-12-09 2011-06-09 Nidek Co., Ltd. Eyeglass frame shape measurement apparatus
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EP2335874A1 (en) 2009-12-09 2011-06-22 Nidek Co., Ltd. Eyeglass frame shape measurement apparatus
US8015716B2 (en) 2009-12-09 2011-09-13 Nidek Co., Ltd. Eyeglass frame shape measurement apparatus
US8578617B2 (en) 2009-12-09 2013-11-12 Nidek Co., Ltd. Eyeglass frame shape measurement apparatus
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US9188420B2 (en) * 2012-07-23 2015-11-17 Nidek Co., Ltd. Eyeglass frame shape measurement apparatus
US9080853B2 (en) 2012-09-05 2015-07-14 Nidek Co., Ltd. Eyeglass frame shape measuring apparatus
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US20090007444A1 (en) 2009-01-08
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EP2012085B1 (en) 2013-09-11
CN101339020A (zh) 2009-01-07

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